Metric (Imperial)

Date	Time (cdt)	Wind (kph)	Vis. (km)	Weather	Sky Cond.	Temperature (ºC)				Relative Humidity	Wind Chill (°C)	Heat Index (°C)	Pressure		Precipitation (cm)
						Air	Dwpt	6 hour					altimeter (cm)	sea level (mb)	1 hr	3 hr	6 hr
								Max.	Min.
02	06:15	S 9	11.27	Fair	CLR	12.4	12.4			100%			76.58	0.0
02	05:55	S 9	6.44	Fog/Mist	CLR	11.5	11.5			100%			76.61	0.0
02	05:35	SW 9	1.21	Fog/Mist	VV005	10.7	10.7			100%			76.61	0.0
02	05:15	SW 9	4.02	Fog/Mist	SCT002	12.7	12.7			100%			76.63	0.0
02	04:55	Calm	2.41	Fog/Mist	VV007	13.2	13.2			100%			76.63	0.0
02	04:35	Calm	2.01	Fog/Mist	VV007	13.3	13.3			100%			76.66	0.0
02	04:15	Calm	2.82	Fog/Mist	VV007	0	0			0%			76.66	0.0
02	03:55	Calm	16.09	Fair	CLR	0	0			0%			76.66	0.0
02	03:35	Calm	16.09	Fair	CLR	0	0			0%			76.68	0.0
02	03:15	Calm	16.09	Fair	CLR	0	0			0%			76.68	0.0
02	02:55	Calm	16.09	Fair	CLR	0	0			0%			76.68	0.0
02	02:35	S 7	16.09	Fair	CLR	0	0			0%			76.68	0.0
02	02:15	S 11	16.09	Fair	CLR	0	0			0%			76.68	0.0
02	01:55	S 9	16.09	Fair	CLR	0	0			0%			76.71	0.0
02	01:35	S 9	16.09	Fair	CLR	0	0			0%			76.71	0.0
02	01:15	S 7	16.09	Fair	CLR	0	0			0%			76.73	0.0
02	00:55	S 7	16.09	Fair	CLR	0	0			0%			76.73	0.0
02	00:35	Calm	16.09	Fair	CLR	0	0			0%			76.73	0.0
02	00:15	SW 6	16.09	Fair	CLR	16	16			100%			76.73	0.0
01	23:55	Calm	16.09	Fair	CLR	15.6	15.6			100%			76.73	0.0
01	23:35	Calm	16.09	Fair	CLR	14.9	14.9			100%			76.73	0.0
01	23:15	Calm	16.09	Fair	CLR	15.5	15.5			100%			76.73	0.0
01	22:55	Calm	16.09	Fair	CLR	15.1	15.1			100%			76.73	0.0
01	22:35	S 11	16.09	Fair	CLR	15.2	15.2			100%			76.73	0.0
01	22:15	S 9	16.09	Fair	CLR	15.4	15.4			100%			76.73	0.0
01	21:55	SE 7	16.09	Fair	CLR	15.8	15.8			100%			76.73	0.0
01	21:35	SE 11	16.09	Fair	CLR	15.8	15.8			100%			76.73	0.0
01	21:15	S 11	16.09	Fair	CLR	16.3	16.3			100%			76.73	0.0
01	20:55	S 9	16.09	Fair	CLR	16.6	16.6			100%			76.73	0.0
01	20:35	S 9	16.09	Fair	CLR	17.2	17.2			100%			76.71	0.0
01	20:15	S 11	16.09	Fair	CLR	18.1	17.7			98%			76.71	0.0
01	19:55	SE 9	16.09	Fair	CLR	19.4	16.5			83%			76.71	0.0
01	19:35	S 9	16.09	Fair	CLR	20.9	16.1			74%			76.71	0.0
01	19:15	S 9	16.09	Fair	CLR	21.6	15.6			69%			76.73	0.0
01	18:55	S 11	16.09	Fair	CLR	22.4	15.9	24.2	21.9	67%			76.73	0.0
01	18:35	S 11	16.09	Fair	CLR	22.6	16			66%			76.73	0.0
01	18:15	S 15	16.09	Fair	CLR	22.8	16.2			66%			76.73	0.0
01	17:55	SE 13	16.09	Fair	CLR	23	15.3			62%			76.73	0.0
01	17:35	S 15	16.09	Fair	CLR	23.5	15.9			62%			76.76	0.0
01	17:15	S 19	16.09	Partly Cloudy	SCT029 SCT038 SCT047	23.8	16.1			62%			76.76	0.0
01	16:55	S 17	16.09	Partly Cloudy	SCT029 SCT049	23.8	16.3			63%			76.76	0.0
01	16:35	SE 13	16.09	Partly Cloudy	SCT032 SCT048	23.7	16.2			63%			76.78	0.0
01	16:15	SE 17	16.09	Overcast	SCT034 SCT042 OVC048	24	16.1			61%		25	76.76	0.0
01	15:55	SE 15	16.09	Partly Cloudy	SCT046	24	15.5			59%		25	76.78	0.0
01	15:35	S 9	16.09	Fair	CLR	23.5	16			63%			76.78	0.0
01	15:15	SE 15	16.09	Partly Cloudy	SCT029 SCT038	21.9	15.7			68%			76.81	0.0
01	14:55	S 15	16.09	Mostly Cloudy	BKN029 BKN036	23.7	16			62%			76.81	0.0
01	14:35	SE 13	16.09	Mostly Cloudy	BKN029 BKN036	23.4	16.1			64%			76.81	0.0
01	14:15	SE 17	16.09	Partly Cloudy	SCT027	23.1	16.1			65%			76.81	0.0
01	13:55	SE 17	16.09	Partly Cloudy	SCT027	23.4	15.9			63%			76.81	0.0
01	13:35	SE 17	16.09	Partly Cloudy	SCT027 SCT035	23.3	16.5			66%			76.81	0.0
01	13:15	E 17	16.09	Mostly Cloudy	SCT025 SCT030 BKN037	22.9	16.6			68%			76.81	0.0
01	12:55	SE 17	16.09	Overcast	SCT025 SCT034 OVC039	23.1	17.2	23.1	12.5	70%			76.81	0.0
01	12:35	SE 9	16.09	Overcast	SCT025 SCT032 OVC041	21.3	17			77%			76.84	0.0
01	12:15	SE 9	16.09	Overcast	BKN023 BKN030 OVC039	21.7	16.7			73%			76.81	0.0
01	11:55	Calm	16.09	Overcast	BKN023 OVC028	21.2	16.6			75%			76.81	0.0
01	11:35	E 13	16.09	Mostly Cloudy	SCT020 SCT025 BKN030	22	16.8			72%			76.81	0.0
01	11:15	SE 15	16.09	Mostly Cloudy	BKN017	21.3	17.4			79%			76.81	0.0
01	10:55	SE 9	16.09	Overcast	OVC015	20.1	17.9			87%			76.81	0.0
01	10:35	SE 11	16.09	Overcast	OVC013	20.5	18.3			87%			76.81	0.0
01	10:15	SE 9	16.09	Partly Cloudy	SCT013	18	18			100%			76.81	0.0
01	09:55	SE 7	16.09	Partly Cloudy	SCT009	17.6	17.6			100%			76.81	0.0
01	09:35	Calm	16.09	Partly Cloudy	SCT001	17.4	17.4			100%			76.81	0.0
01	09:15	Calm	8.05	Fog/Mist	BKN001	16.9	16.9			100%			76.81	0.0
01	08:55	Calm	0.24	Fog	OVC001	16.1	16.1			100%			76.81	0.0
01	08:35	Calm	0.24	Fog	OVC001	15.6	15.6			100%			76.84	0.0
01	08:15	Calm	0.24	Fog	OVC001	15	15			100%			76.84	0.0
01	07:55	Calm	0.24	Fog	OVC001	14.4	14.4			100%			76.81	0.0
01	07:35	Calm	0.24	Fog	OVC003	13.6	13.6			100%			76.81	0.0
01	07:15	Calm	0.24	Fog	OVC003	12.5	12.5			100%			76.78	0.0
01	06:55	Calm	4.83	Fog/Mist	CLR	15	15			100%			76.78	0.0
01	06:35	Calm	6.44	Fog/Mist	CLR	14.7	14.7			100%			76.78	0.0
01	06:15	Calm	8.05	Fog/Mist	CLR	15.1	15.1			100%			76.78	0.0
01	05:55	Calm	11.27	Fair	CLR	15	15			100%			76.78	0.0
01	05:35	Calm	8.05	Fair with Haze	CLR	0	0			0%			76.76	0.0
01	05:15	Calm	6.44	Fair with Haze	CLR	0	0			0%			76.76	0.0
01	04:55	E 6	11.27	Fair	CLR	0	0			0%			76.76	0.0
01	04:35	E 6	16.09	Fair	CLR	0	0			0%			76.76	0.0
01	04:15	E 6	16.09	Partly Cloudy	SCT120	0	0			0%			76.78	0.0
01	03:55	E 6	16.09	Partly Cloudy	SCT120	0	0			0%			76.78	0.0
01	03:35	Calm	16.09	Fair	CLR	0	0			0%			76.78	0.0
01	03:15	Calm	16.09	Fair	CLR	16.5	16.5			100%			76.76	0.0
01	02:55	Calm	16.09	Partly Cloudy	SCT043 SCT065	16.7	16.7			100%			76.76	0.0
01	02:35	Calm	16.09	Light Drizzle	SCT055 SCT070 SCT110	16.8	16.8			100%			76.78	0.0
01	02:15	Calm	16.09	Light Rain	SCT055 SCT070 SCT120	16.8	16.8			100%			76.78	0.0
01	01:55	Calm	16.09	Mostly Cloudy	BKN031	17	17			100%			76.78	0.0
01	00:15	Calm	16.09	Overcast	OVC120	16.9	16.9			100%			76.78	0.0
31	23:55	Calm	16.09	Light Rain	BKN120	17.1	17.1			100%			76.78	0.0
31	23:35	Calm	16.09	Partly Cloudy	SCT120	18.2	17.1			93%			76.78	0.0
31	23:15	Calm	16.09	Partly Cloudy	SCT120	18.2	18.2			100%			76.78	0.0
31	22:55	NE 6	16.09	Mostly Cloudy	BKN120	18.3	17.1			93%			76.78	0.0
31	22:35	Calm	16.09	Mostly Cloudy	BKN120	18.6	17.2			92%			76.78	0.0
31	22:15	E 6	16.09	Mostly Cloudy	SCT050 SCT065 BKN120	18.7	17			90%			76.76	0.0
31	21:55	E 7	16.09	Partly Cloudy	SCT065 SCT120	19.1	16.7			86%			76.76	0.0
31	21:35	E 6	16.09	Fair	CLR	19.2	16.6			85%			76.76	0.0
31	21:15	E 6	16.09	Fair	CLR	19.3	16.6			84%			76.73	0.0
31	20:55	Calm	16.09	Partly Cloudy	SCT120	19.5	16.5			83%			76.73	0.0
31	20:35	E 6	16.09	Mostly Cloudy	BKN120	19.7	16.4			81%			76.73	0.0
31	20:15	SE 6	16.09	Mostly Cloudy	BKN110	19.6	16.9			85%			76.73	0.0
31	19:55	Calm	16.09	Overcast	OVC100	20	17			83%			76.73	0.0
31	19:35	Calm	16.09	Overcast	OVC100	20.3	16.9			81%			76.73	0.0
31	19:15	SE 7	16.09	Partly Cloudy	SCT100	20.7	16.4			77%			76.73	0.0
31	18:55	S 9	16.09	Partly Cloudy	SCT090	21	16.1	22.3	17.8	74%			76.73	0.0			0.36
31	18:35	S 9	16.09	Mostly Cloudy	BKN100	21.5	16.4			73%			76.73	0.0
31	18:15	SE 9	16.09	Overcast	SCT026 SCT070 OVC100	21.5	16.7			74%			76.73	0.0
31	17:55	SE 7	16.09	Partly Cloudy	SCT024 SCT070 SCT100	21.7	16.8			74%			76.73	0.0
31	17:35	SE 11	16.09	Partly Cloudy	SCT055	21.3	16.4			74%			76.73	0.0
31	17:15	SE 13	16.09	Overcast	SCT048 OVC055	21.6	17			75%			76.73	0.0
31	16:55	SE 15	16.09	Overcast	SCT034 SCT041 OVC048	21.5	16.8			75%			76.73	0.0
31	16:35	SE 13	16.09	Overcast	BKN034 OVC048	20.9	16.7			77%			76.73	0.0
31	16:15	SE 15	16.09	Overcast	SCT021 SCT027 OVC034	20.7	17.8			84%			76.76	0.0
31	15:55	SE 11	16.09	Overcast	SCT020 BKN027 OVC034	20.7	19			90%			76.76	0.0		0.36
31	15:35	SE 13	16.09	Overcast	SCT022 BKN043 OVC060	22	17.7			77%			76.76	0.0
31	15:15	SE 11	16.09	Overcast	OVC050	20.8	18.1			85%			76.78	0.0
31	14:55	S 7	16.09	Overcast	SCT012 BKN048 OVC060	19.9	18.7			93%			76.78	0.0
31	14:35	S 11	16.09	Overcast	SCT012 BKN040 OVC060	19.3	19.3			100%			76.78	0.0
31	14:15	S 11	16.09	Overcast	SCT040 BKN046 OVC050	18.8	18.8			100%			76.78	0.0
31	13:55	S 15	16.09	Overcast	SCT010 SCT022 OVC050	18.2	18.2			100%			76.78	0.0	0.36
31	13:35	S 15 G 30	2.82	Rain	SCT008 BKN013 OVC020	17.8	17.8			100%			76.81	0.0	0.36
31	13:15	E 9	11.27	Rain	SCT022 BKN034 OVC039	19.4	19.3			99%			76.81	0.0
31	12:55	SE 11	16.09	Overcast	SCT016 BKN040 OVC070	20.2	18			87%			76.78	0.0
31	12:35	SE 11	16.09	Overcast	BKN016 OVC070	20.2	18.7			91%			76.81	0.0
31	12:15	SE 9	16.09	Overcast	SCT013 SCT019 OVC070	19.8	18.5			92%			76.81	0.0
31	11:55	SE 13	16.09	Overcast	BKN013 OVC019	20.1	18.6			91%			76.84	0.0
31	11:35	SE 9	16.09	Overcast	OVC011	19.9	19.6			98%			76.84	0.0
31	11:15	E 6	16.09	Overcast	OVC011	19.1	19.1			100%			76.81	0.0
31	10:55	E 11	16.09	Overcast	OVC011	19	19			100%			76.81	0.0
31	10:35	SE 11	16.09	Overcast	OVC009	18.5	18.5			100%			76.81	0.0
31	10:15	E 9	16.09	Overcast	OVC007	18	18			100%			76.81	0.0
31	09:55	E 7	16.09	Overcast	OVC007	18	18			100%			76.78	0.0
31	09:35	E 11	16.09	Overcast	OVC007	17.7	17.7			100%			76.78	0.0
31	09:15	SE 11	16.09	Overcast	BKN005 OVC110	17.3	17.3			100%			76.78	0.0
31	08:55	E 7	11.27	Overcast	BKN005 OVC110	0	0			0%			76.76	0.0
31	08:35	E 6	11.27	Overcast	SCT003 OVC110	0	0			0%			76.78	0.0
31	08:15	Calm	8.05	Mostly Cloudy with Haze	BKN003 BKN060 BKN095	0	0			0%			76.76	0.0
31	07:55	Calm	6.44	Mostly Cloudy with Haze	SCT060 SCT070 BKN120	0	0			0%			76.73	0.0
31	07:35	SE 6	8.05	Overcast with Haze	SCT003 BKN065 OVC110	0	0			0%			76.73	0.0
31	07:15	SE 9	8.05	Light Drizzle	OVC003	0	0			0%			76.73	0.0
31	06:55	SE 11	8.05	Light Drizzle	OVC005	0	0			0%			76.73	0.0
31	06:35	SE 9	11.27	Light Rain	OVC005	0	0			0%			76.73	0.0
31	06:15	SE 15	11.27	Overcast	OVC005	0	0			0%			76.73	0.0
31	05:55	SE 9	16.09	Overcast	OVC007	0	0			0%			76.73	0.0
31	05:35	E 6	16.09	Overcast	BKN007 BKN080 OVC110	0	0			0%			76.71	0.0
31	05:15	Calm	16.09	Overcast	SCT011 BKN080 OVC110	0	0			0%			76.71	0.0
31	04:55	Calm	16.09	Overcast	OVC013	0	0			0%			76.68	0.0
31	04:35	Calm	16.09	Overcast	BKN015 BKN070 OVC080	0	0			0%			76.66	0.0
31	04:15	Calm	16.09	Overcast	BKN080 OVC100	16.3	16.3			100%			76.66	0.0
31	03:55	Calm	16.09	Overcast	SCT021 OVC070	16.3	16.3			100%			76.66	0.0
31	03:35	Calm	16.09	Overcast	OVC070	16.5	16.5			100%			76.66	0.0
31	03:15	Calm	16.09	Overcast	OVC060	16.4	16.4			100%			76.66	0.0
31	02:55	Calm	16.09	Overcast	BKN060 OVC070	0	0			0%			76.66	0.0
31	02:35	SE 11	16.09	Overcast	SCT055 BKN070 OVC110	0	0			0%			76.66	0.0
31	02:15	SE 11	16.09	Overcast	SCT050 BKN055 OVC110	0	0			0%			76.66	0.0
31	01:55	SE 9	16.09	Overcast	SCT030 BKN050 OVC055	0	0			0%			76.66	0.0
31	01:35	SE 9	16.09	Drizzle	SCT023 BKN028 OVC036	17	17			100%			76.66	0.0
31	01:15	SE 13	16.09	Light Rain	BKN021 OVC029	17	17			100%			76.66	0.0
31	00:55	SE 13	16.09	Light Drizzle	SCT021 OVC029	16.8	16.8	17.5	16.2	100%			76.66	0.0	0.03		0.03
31	00:35	E 9	16.09	Drizzle	SCT023 OVC031	16.7	16.7			100%			76.66	0.0	0.03
31	00:15	E 11	16.09	Drizzle	OVC021	16.8	16.8			100%			76.63	0.0
30	23:55	E 7	16.09	Drizzle	OVC019	16.7	16.7			100%			76.63	0.0
30	23:35	E 7	16.09	Overcast	SCT013 BKN019 OVC110	16.6	16.6			100%			76.63	0.0
30	23:15	E 6	16.09	Overcast	BKN013 BKN022 OVC110	16.6	16.6			100%			76.63	0.0
30	22:55	SE 9	16.09	Light Drizzle	SCT011 BKN032 OVC110	0	0			0%			76.61	0.0
30	22:35	SE 7	16.09	Light Rain	SCT011 BKN030 OVC110	16.5	16.5			100%			76.61	0.0
30	22:15	E 6	16.09	Light Drizzle	OVC110	16.5	16.5			100%			76.61	0.0
30	21:55	E 6	16.09	Overcast	SCT075 OVC100	16.6	16.6			100%			76.61	0.0
30	21:35	E 9	16.09	Light Drizzle	SCT085 OVC110	16.5	16.5			100%			76.58	0.0
30	21:15	E 11	16.09	Light Rain	OVC110	16.5	16.5			100%			76.56	0.0
30	20:35	E 7	16.09	Drizzle	OVC120	16.5	16.5			100%			76.56	0.0
30	20:15	SE 17	16.09	Drizzle	OVC110	16.6	16.6			100%			76.56	0.0
30	19:55	SE 13	16.09	Drizzle	BKN095 OVC120	17	17			100%			76.53	0.0
30	19:35	SE 11	16.09	Overcast	BKN095 OVC110	17.1	17.1			100%			76.53	0.0
30	19:15	SE 15	16.09	Light Rain	BKN085 OVC100	17.5	17.5			100%			76.53	0.0
30	18:55	SE 15	16.09	Overcast	OVC075	17.5	17.3	20	17	99%			76.53	0.0			0.03
30	18:35	SE 17	16.09	Overcast	OVC085	17.5	17.5			100%			76.5	0.0
30	18:15	SE 17	16.09	Overcast	OVC085	17.5	17.5			100%			76.5	0.0
30	17:55	SE 20 G 33	16.09	Overcast	OVC085	18.3	18.3			100%			76.48	0.0
30	17:35	SE 19	16.09	Overcast	SCT075 OVC085	18.5	17.5			94%			76.45	0.0
30	17:15	SE 24 G 35	16.09	Overcast	SCT055 BKN075 OVC085	18	17			94%			76.45	0.0
30	16:55	SE 30 G 37	16.09	Light Rain	SCT042 BKN050 OVC065	17.1	15.4			90%			76.45	0.0
30	16:35	SE 28 G 37	16.09	Drizzle	SCT034 BKN046 OVC055	17.5	14.4			82%			76.45	0.0
30	16:15	SE 24	16.09	Light Rain	SCT017 SCT039 BKN050	18.3	16.4			89%			76.48	0.0
30	15:55	SE 19	16.09	Mostly Cloudy	BKN039 BKN049 BKN100	19.8	19.8			100%			76.48	0.0		0.03
30	15:35	E 15	16.09	Light Drizzle	OVC035	19.6	19.6			100%			76.48	0.0
30	15:15	SE 15	16.09	Light Drizzle	BKN033 OVC039	19.5	19.5			100%			76.48	0.0
30	14:55	SE 19	16.09	Light Drizzle	SCT012 BKN030 OVC085	19.2	19.2			100%			76.48	0.0
30	14:35	SE 17	16.09	Light Drizzle	SCT010 BKN085 OVC100	19.1	19.1			100%			76.48	0.0
30	14:15	E 13	16.09	Light Drizzle	SCT010 BKN085 OVC110	19	19			100%			76.48	0.0
30	13:55	SE 17	16.09	Light Drizzle	BKN012 BKN031 OVC080	18.9	18.9			100%			76.48	0.0	0.03
30	13:35	SE 20 G 28	16.09	Light Drizzle	BKN010 BKN029 OVC060	18.7	18.7			100%			76.48	0.0
30	13:15	SE 17	16.09	Rain	SCT031 SCT039 OVC060	18.6	18.6			100%			76.48	0.0
30	12:55	SE 20	16.09	Drizzle	SCT010 BKN060 OVC070	18.5	18.5			100%			76.48	0.0	0.05		0.08
30	12:35	SE 19	16.09	Drizzle	SCT007 BKN016 OVC060	0	0			0%			76.48	0.0	0.03
30	12:15	SE 22 G 30	16.09	Overcast	OVC009	18.7	18.7			100%			76.48	0.0
30	11:55	SE 19 G 26	16.09	Overcast	BKN013 BKN018 OVC047	19	19			100%			76.48	0.0	0.03
30	11:35	SE 22	16.09	Overcast	SCT013 BKN017 OVC047	19.1	19.1			100%			76.48	0.0	0.03
30	11:15	SE 28	16.09	Light Rain	BKN013 OVC049	19.2	19.2			100%			76.48	0.0
30	10:55	SE 19 G 26	16.09	Overcast	BKN011 OVC045	19.5	19.5			100%			76.48	0.0
30	10:35	SE 22	16.09	Overcast	SCT011 BKN020 OVC049	19.5	19.5			100%			76.48	0.0
30	10:15	SE 20	16.09	Overcast	SCT011 BKN020 OVC040	19.5	19.5			100%			76.45	0.0
30	09:55	SE 17	16.09	Mostly Cloudy	SCT011 BKN020 BKN110	19.2	19.2			100%			76.45	0.0
30	09:35	SE 15	16.09	Overcast	OVC020	18.6	18.6			100%			76.45	0.0
30	09:15	SE 13	16.09	Overcast	SCT008 SCT012 OVC018	18.2	18.2			100%			76.45	0.0
30	08:55	SE 19	16.09	Overcast	OVC008	18	18			100%			76.45	0.0
30	08:35	SE 15	16.09	Overcast	OVC006	18	18			100%			76.45	0.0
30	08:15	SE 13	16.09	Overcast	OVC006	0	0			0%			76.43	0.0
30	07:55	SE 15	16.09	Overcast	OVC006	0	0			0%			76.43	0.0
30	07:35	SE 13	16.09	Overcast	OVC006	0	0			0%			76.4	0.0
30	07:15	SE 13	16.09	Overcast	OVC006	0	0			0%			76.4	0.0
30	06:55	SE 13	16.09	Light Drizzle	OVC008	0	0			0%			76.4	0.0
30	06:35	SE 13	16.09	Light Rain	BKN008 OVC075	18.1	18.1			100%			76.38	0.0
Date	Time (cdt)	Wind (kph)	Vis. (km)	Weather	Sky Cond.	Air	Dwpt	Max.	Min.	Relative Humidity	Wind Chill (°C)	Heat Index (°C)	altimeter (cm)	sea level (mb)	1 hr	3 hr	6 hr
								6 hour
						Temperature (ºC)							Pressure		Precipitation (cm)